Estimation of heterosis and combining ability for biochemical traits in bitter gourd (Momordica charantia L.)

Abstract

The present study was conducted to estimate the effects of combining ability and heterobeltiosis in bitter gourd under rainy season, 2013 at Vegetable research farm, Department of Vegetable Science, PAU, Ludhiana. The seven line and six tester which were mated in a line x tester manners to produce forty two hybrid. The sca effect greater than gca effects that indicates that non addative effect for carotene, vitamin-C, total Sugar and reducing sugars. Parents PAUBG-13 and PAUBG-50 Significant gca for Vitamin-c and total Sugar and cross combination Punjab-14 x PAUBG-50 significant sca effect for total and reducing sugar. The heterosis over batter parent siganificant in crosses PAUBG-4 x PAUBG-50 (18.58%), Punjab-14 x PBIG-56 (52.92%) and Punjab-14 x PAUBG-50 (-57.73) for vitamin-C, carotene and total sugar, respectively.